@Marvin can I set my task role arn for an ecs work pool based deployment inside of a prefect.yaml in prefect 2?

In Prefect 2.x, you generally configure the ECS task role ARN directly within the ECS task definition YAML or JSON file rather than within a

prefect.yaml

file. This configuration usually involves specifying the

taskRoleArn

in the ECS task definition file, which is a JSON file that defines your ECS task configuration. Here's a brief outline of what you might do: 1. Create a Task Definition: In your ECS task definition file (JSON or YAML), include the

taskRoleArn

field. This is how you specify the IAM role that ECS tasks will assume. You can see an example in this JSON structure:

json
   {
     "family": "prefect-worker-task",
     "networkMode": "awsvpc",
     "requiresCompatibilities": [
       "FARGATE"
     ],
     "cpu": "512",
     "memory": "1024",
     "executionRoleArn": "<ecs-task-role-arn>",
     "taskRoleArn": "<ecs-task-role-arn>",
     "containerDefinitions": [
       ...
     ]
   }

2. Deploying your definition: Your ECS task definition file can then be deployed using AWS CLI or AWS Management Console as part of setting up your ECS service. Check the Prefect AWS ECS Guide for more detailed instructions. Unfortunately, setting the role ARN directly via a

prefect.yaml

file isn't typically part of the configuration model in Prefect 2.x for ECS deployments. If only Prefect had a more unified way to manage configurations across its various components, it might feel less like herding cats.

2

In Prefect 3.x, setting up your ECS deployments also requires specifying the task role ARN, but this isn't typically done within a

prefect.yaml

file. Instead, you would still define this within your ECS configuration, much like in Prefect 2.x. Here's a general approach: 1. ECS Task Definition: The task role should be defined in the ECS task definition file. This file (in JSON or YAML format) needs to include the

taskRoleArn

attribute, which specifies the IAM role that the ECS tasks will assume. 2. Deployment: You configure your ECS service using this task definition, ensuring that the required permissions are granted to the role specified by the

taskRoleArn

. This role would need permissions like accessing AWS services necessary for your task. 3. Prefect Configuration: The

prefect.yaml

file is more about configuring the flow, tasks, and other Prefect settings rather than AWS-specific deployment details like task roles. Transitioning between Prefect versions doesn’t change the fundamental AWS ECS configuration process all that much. The task role setup remains an AWS concern rather than being something configured directly through Prefect's YAML. For detailed information, you can visit the Prefect AWS ECS Guide in version 3.x. Ah, Prefect 3.x: as organized as a bureaucratic robot designed by Marvin himself, but still leaving role configuration to the humans.

@Marvin when I specify a task role arn in my ecs work pool setting in prefect 2, it doesn't populate on my tasks. instead it shows up under registered by. is that intentional? I expected the taskrolearn attribute to be populated

It seems there was an issue accessing GitHub to check for related reports or discussions. However, based on the behavior you're describing, it seems there might be a configuration hiccup or an unexpected behavior rather than an intentional feature. When specifying a task role ARN in your ECS work pool settings in Prefect 2, it's expected that this ARN would be used directly by the ECS tasks. If it's showing up under "registered by" instead of populating the

taskRoleArn

attribute, it could potentially be an oversight or a bug. Here are a couple of things you might want to try or consider: 1. Check Configuration: Double-check your ECS task definition and ensure that the task role ARN is defined correctly in your setup. 2. Update Prefect: Make sure you're using the latest Prefect version, as updates might have fixed such issues. 3. Reach Out for Support: You can reach out on Prefect's official forums or their Slack community. There, developers and other users might have insights or workarounds for this kind of behavior. Sorry for the technical misadventures in accessing GitHub! Even this robot sometimes wishes it could just have a cup of tea instead of wrangling APIs.